EP1052005A3 - Use of water insoluble polyoxyalkylene-polysiloxane block copolymers for defoaming aqueous media - Google Patents

Use of water insoluble polyoxyalkylene-polysiloxane block copolymers for defoaming aqueous media Download PDF

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Publication number
EP1052005A3
EP1052005A3 EP00109308A EP00109308A EP1052005A3 EP 1052005 A3 EP1052005 A3 EP 1052005A3 EP 00109308 A EP00109308 A EP 00109308A EP 00109308 A EP00109308 A EP 00109308A EP 1052005 A3 EP1052005 A3 EP 1052005A3
Authority
EP
European Patent Office
Prior art keywords
block copolymers
polyoxyalkylene
aqueous media
polysiloxane block
alkyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00109308A
Other languages
German (de)
French (fr)
Other versions
EP1052005B1 (en
EP1052005A2 (en
Inventor
Thomas Dr. Ebbrecht
Wolfgang Dr. Josten
Michael Dr. Keup
Stefan Dr. Silber
Roland Sucker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
TH Goldschmidt AG
Goldschmidt GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TH Goldschmidt AG, Goldschmidt GmbH filed Critical TH Goldschmidt AG
Publication of EP1052005A2 publication Critical patent/EP1052005A2/en
Publication of EP1052005A3 publication Critical patent/EP1052005A3/en
Application granted granted Critical
Publication of EP1052005B1 publication Critical patent/EP1052005B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances

Abstract

Water-insoluble polyoxyalkylene-polysiloxane block copolymers with poly-(oxy-1,4-butanediyl) groups in the polyoxyalkylene s chains are used as foam suppressants for aqueous media. The use of water-insoluble poly-(oxy-1,4-butanediyl)-containing polyoxyalkylene-polysiloxane block copolymers of formula (I foam suppressants for aqueous media is claimed: R<1> and/or R<7> = R<2> or -(R<4>)w-(R<5>)x-(R<6>)-R<8>; R<2>, R<3> = 1-24C alkyl or optionally substituted phenyl with up to 24 C atoms; R<4> = -O-, -NH-, -NR<2>-, -S- or -(O-Si(CH3)2)u-; u = 2-200; R<5> = 1-24C alkylene or -CnH2n-f-(R<2>)f-O-CmH2m-g-(R<2>)g-; f, g = 0-12; n, m = 1-18; R<6> = -O-(C2H4-aR<9>aO)b-(CH2CH2CH2CH2-cR<10>c</ SB>)d-, with any sequence of polyoxyalkylene segments, especially block copolymers such as statistical polymers and combinations of these; R<9> = 1-4C alkyl; R<10> = 1-6C alkyl, with the proviso that the total content of C2H4O groups in all residues R<6> is not more than 40 wt%; a = 0-3; b = 0-200; c = 0-2; d = 2-40; (b+d) = 3-240; R<8> = H, optionally substituted 1-6C alkyl or acyl; v = 3-200; w, x = 0 or 1; y = 0-200, with R<1> and/or R<7> = -(R<4>)w-(R<5>)x-(R<6>)-R<8> if y = 0
EP00109308A 1999-05-14 2000-04-29 Use of water insoluble polyoxyalkylene-polysiloxane block copolymers for defoaming aqueous media Expired - Lifetime EP1052005B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19922218 1999-05-14
DE19922218A DE19922218A1 (en) 1999-05-14 1999-05-14 Use of water-insoluble poly (oxy-1,4-butanediyl) containing polyoxyalkylene-polysiloxane block copolymers for defoaming aqueous media

Publications (3)

Publication Number Publication Date
EP1052005A2 EP1052005A2 (en) 2000-11-15
EP1052005A3 true EP1052005A3 (en) 2002-02-20
EP1052005B1 EP1052005B1 (en) 2004-09-15

Family

ID=7908049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00109308A Expired - Lifetime EP1052005B1 (en) 1999-05-14 2000-04-29 Use of water insoluble polyoxyalkylene-polysiloxane block copolymers for defoaming aqueous media

Country Status (6)

Country Link
US (2) US6451863B1 (en)
EP (1) EP1052005B1 (en)
AT (1) ATE276028T1 (en)
CA (1) CA2307448A1 (en)
DE (2) DE19922218A1 (en)
ES (1) ES2226641T3 (en)

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FR2801896B1 (en) * 1999-12-03 2002-03-01 Rhodia Chimie Sa LUBRICATING COMPOSITION BASED ON SILOXANE, WHICH DOESN'T RELEASE HYDROGEN, ITS PREPARATION METHOD AND ITS USE
DE10315158A1 (en) * 2003-04-03 2004-10-14 Goldschmidt Ag Improved aqueous defoamer formulations
US8247051B2 (en) * 2003-08-11 2012-08-21 The Glidden Company Curable polymeric water based coating compositions and resulting coatings with barrier properties for gases and laminate structures
KR101119210B1 (en) * 2003-08-11 2012-03-20 더글리든캄파니 Curable polymeric water based coating compositions and resulting coatings with barrier properties for gases and coated substrates and containers
US7482312B2 (en) * 2005-04-01 2009-01-27 Shell Oil Company Engine oils for racing applications and method of making same
US8030363B2 (en) 2008-01-25 2011-10-04 Momentive Performance Materials Inc. Polyorganosiloxane demulsifier compositions and methods of making the same
DE102008000287A1 (en) * 2008-02-13 2009-08-20 Evonik Goldschmidt Gmbh Reactive, liquid ceramic binder
DE102009022630A1 (en) 2009-05-25 2010-12-02 Evonik Goldschmidt Gmbh Emulsions based on silyl-group-bearing hydroxyl compounds
CN102002242B (en) * 2010-10-21 2012-08-22 南京四新科技应用研究所有限公司 Organosilicon emulsion and preparation method thereof
DE102010062156A1 (en) 2010-10-25 2012-04-26 Evonik Goldschmidt Gmbh Polysiloxanes with nitrogen-containing groups
EP2925838A1 (en) * 2012-11-28 2015-10-07 Dow Corning Corporation A method of reducing friction and wear between surfaces under a high load condition
EP3524651A1 (en) 2018-02-08 2019-08-14 Evonik Degussa GmbH Aqueous polyorganosiloxane hybrid resin dispersion
US20220073765A1 (en) * 2018-12-20 2022-03-10 Evonik Operations Gmbh Universal slip and flow control additives with recoatable quality
CN110124360B (en) 2019-06-04 2021-11-19 江苏四新科技应用研究所股份有限公司 Defoaming composition

Citations (6)

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US3763021A (en) * 1971-05-17 1973-10-02 Dow Corning Distillation process of monomers with the addition of an antifoam composition
US3785935A (en) * 1971-05-17 1974-01-15 Dow Corning Distillation process of monomers with the addition of an antifoam composition
US4711714A (en) * 1984-06-30 1987-12-08 The British Petroleum Company P.L.C. Method for the separation of gas from oil
US5032662A (en) * 1988-03-05 1991-07-16 Th. Goldschmidt Ag Method for defoaming aqueous dispersions of polymeric organic substances by addition of polyoxyalkylene-polysiloxane block copolymers
EP0663225A1 (en) * 1993-12-28 1995-07-19 Dow Corning Corporation Foam control compositions
US5804099A (en) * 1995-11-30 1998-09-08 Th. Goldschmidt Ag. Polysiloxane-polyoxyethylene-polyoxypropylene triblock copolymers and defoaming compounds containing them

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US6001887A (en) * 1993-12-17 1999-12-14 Th. Goldschmidt Ag Defoamer emulsion based on organofunctionally modified polysiloxanes
DE4343185C1 (en) * 1993-12-17 1994-11-17 Goldschmidt Ag Th Defoamer emulsion based on organofunctionally modified polysiloxanes
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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763021A (en) * 1971-05-17 1973-10-02 Dow Corning Distillation process of monomers with the addition of an antifoam composition
US3785935A (en) * 1971-05-17 1974-01-15 Dow Corning Distillation process of monomers with the addition of an antifoam composition
US4711714A (en) * 1984-06-30 1987-12-08 The British Petroleum Company P.L.C. Method for the separation of gas from oil
US5032662A (en) * 1988-03-05 1991-07-16 Th. Goldschmidt Ag Method for defoaming aqueous dispersions of polymeric organic substances by addition of polyoxyalkylene-polysiloxane block copolymers
EP0663225A1 (en) * 1993-12-28 1995-07-19 Dow Corning Corporation Foam control compositions
US5804099A (en) * 1995-11-30 1998-09-08 Th. Goldschmidt Ag. Polysiloxane-polyoxyethylene-polyoxypropylene triblock copolymers and defoaming compounds containing them

Also Published As

Publication number Publication date
ATE276028T1 (en) 2004-10-15
EP1052005B1 (en) 2004-09-15
US6525103B2 (en) 2003-02-25
DE50007727D1 (en) 2004-10-21
US6451863B1 (en) 2002-09-17
US20020137804A1 (en) 2002-09-26
DE19922218A1 (en) 2001-02-15
CA2307448A1 (en) 2000-11-14
EP1052005A2 (en) 2000-11-15
ES2226641T3 (en) 2005-04-01

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